Evidence map›Paper›PMID 32103250›Full record

ArticleBrain : a journal of neurology2020

Two distinct neuroanatomical subtypes of schizophrenia revealed using machine learning.

Ganesh B Chand, Dominic B Dwyer, Guray Erus, Aristeidis Sotiras, Erdem Varol, Dhivya Srinivasan, Jimit Doshi, Raymond Pomponio, Alessandro Pigoni, Paola Dazzan and 18 more

Abstract readMulticenter Study
In one paragraph

Article in Brain : a journal of neurology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 143 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
143citing papers in PubMed, 3 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

143 citing papers in PubMed, 3 syntheses or guidelines pooled it.

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83 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

28 authors.

Ganesh B ChandDepartment of Radiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, USA.
Dominic B DwyerDepartment of Psychiatry and Psychotherapy, Ludwig-Maximilian University, Munich, Germany.
Guray ErusDepartment of Radiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, USA.
Aristeidis SotirasDepartment of Radiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, USA.
Erdem VarolDepartment of Radiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, USA.
Dhivya SrinivasanDepartment of Radiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, USA.
Jimit DoshiDepartment of Radiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, USA.
Raymond PomponioDepartment of Radiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, USA.
Alessandro PigoniDepartment of Psychiatry and Psychotherapy, Ludwig-Maximilian University, Munich, Germany.
Paola DazzanInstitute of Psychiatry, King's College London, London, UK.
Rene S KahnDepartment of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, USA.
Hugo G SchnackDepartment of Psychiatry, University Medical Center Utrecht, Utrecht, The Netherlands.
Marcus V ZanettiInstitute of Psychiatry, Faculty of Medicine, University of São Paulo, São Paulo, Brazil.
Eva MeisenzahlLVR-Klinikum Düsseldorf, Kliniken der Heinrich-Heine-Universität, Düsseldorf, Germany.
Geraldo F BusattoInstitute of Psychiatry, Faculty of Medicine, University of São Paulo, São Paulo, Brazil.
Benedicto Crespo-FacorroUniversity of Cantabria; IDIVAL-CIBERSAM, Cantabria, Spain.
Christos PantelisMelbourne Neuropsychiatry Centre, Department of Psychiatry, University of Melbourne and Melbourne Health, Carlton South, Australia.
Stephen J WoodOrygen, National Centre of Excellence for Youth Mental Health, Melbourne, Australia.
Chuanjun ZhuoDepartment of Psychiatric-Neuroimaging-Genetics and Co-morbidity Laboratory (PNGC-Lab), Nankai University Affiliated Tianjin Anding Hospital, Tianjin Medical University, Tianjin, China.
Russell T ShinoharaCenter for Biomedical Image Computing and Analytics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, USA.
Haochang ShouCenter for Biomedical Image Computing and Analytics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, USA.
Yong FanDepartment of Radiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, USA.
Ruben C GurDepartment of Radiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, USA.
Raquel E GurDepartment of Radiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, USA.
Theodore D SatterthwaiteCenter for Biomedical Image Computing and Analytics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, USA.
Nikolaos KoutsoulerisDepartment of Psychiatry and Psychotherapy, Ludwig-Maximilian University, Munich, Germany.
Daniel H WolfCenter for Biomedical Image Computing and Analytics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, USA.
Christos DavatzikosDepartment of Radiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, USA.

Funding

Longitudinal Mapping of Network Development Underlying Executive Dysfunction in AdolescenceR01MH113550 · NIMH · UNIVERSITY OF PENNSYLVANIA · PI Danielle Smith Bassett, Theodore Satterthwaite · 2018 to 2026
$6.9M
Personalized Functional Network Modeling to Characterize and Predict Psychopathology in YouthR01EB022573 · NIBIB · UNIVERSITY OF PENNSYLVANIA · PI Yong Fan, Theodore Satterthwaite · 2016 to 2026
$6.0M
Inter-modal Coupling Image AnalyticsR01MH112847 · NIMH · UNIVERSITY OF PENNSYLVANIA · PI Theodore Satterthwaite, Russell Takeshi Shinohara · 2017 to 2026
$5.9M
Evolution of Psychosis in Youth: Multimodal Risk and Resilience MarkersR01MH119219 · NIMH · UNIVERSITY OF PENNSYLVANIA · PI GUR, RAQUEL E, GUR, RUBEN C. · 2019 to 2023
$3.8M
Adolescent Neurodevelopment and Impaired Intrinsic Motivation in Psychosis RiskR01MH113565 · NIMH · UNIVERSITY OF PENNSYLVANIA · PI WOLF, DANIEL H · 2018 to 2022
$2.9M
Mapping Heterogeneity of Neuroanatomical Imaging Signatures of Psychosis via Pattern AnalysisR01MH112070 · NIMH · UNIVERSITY OF PENNSYLVANIA · PI DAVATZIKOS, CHRISTOS · 2017 to 2020
$2.7M
Virtual Resection to Treat EpilepsyR01NS099348 · NINDS · UNIVERSITY OF PENNSYLVANIA · PI BASSETT, DANIELLE SMITH, LITT, BRIAN · 2016 to 2019
$2.3M
Biomedical Image Computing and Informatics ClusterS10OD023495 · OD · UNIVERSITY OF PENNSYLVANIA · PI DAVATZIKOS, CHRISTOS · 2017 to 2017
$1.9M
Quantitative Behavioral and Imaging Phenotypes of Amotivation in SchizophreniaR01MH101111 · NIMH · UNIVERSITY OF PENNSYLVANIA · PI WOLF, DANIEL H · 2013 to 2016
$1.6M
Medical Research Council MC_PC_11003NIBIB NIH HHS R01 EB022573NIH HHS S10 OD023495NIMH NIH HHS R01 MH101111NIMH NIH HHS R01 MH112070NIMH NIH HHS R01 MH112847NIMH NIH HHS R01 MH113550NIMH NIH HHS R01 MH113565NIMH NIH HHS R01 MH119219NINDS NIH HHS R01 NS099348
6 · The paper itself

Abstract

Neurobiological heterogeneity in schizophrenia is poorly understood and confounds current analyses. We investigated neuroanatomical subtypes in a multi-institutional multi-ethnic cohort, using novel semi-supervised machine learning methods designed to discover patterns associated with disease rather than normal anatomical variation. Structural MRI and clinical measures in established schizophrenia (n = 307) and healthy controls (n = 364) were analysed across three sites of PHENOM (Psychosis Heterogeneity Evaluated via Dimensional Neuroimaging) consortium. Regional volumetric measures of grey matter, white matter, and CSF were used to identify distinct and reproducible neuroanatomical subtypes of schizophrenia. Two distinct neuroanatomical subtypes were found. Subtype 1 showed widespread lower grey matter volumes, most prominent in thalamus, nucleus accumbens, medial temporal, medial prefrontal/frontal and insular cortices. Subtype 2 showed increased volume in the basal ganglia and internal capsule, and otherwise normal brain volumes. Grey matter volume correlated negatively with illness duration in Subtype 1 (r = -0.201, P = 0.016) but not in Subtype 2 (r = -0.045, P = 0.652), potentially indicating different underlying neuropathological processes. The subtypes did not differ in age (t = -1.603, df = 305, P = 0.109), sex (chi-square = 0.013, df = 1, P = 0.910), illness duration (t = -0.167, df = 277, P = 0.868), antipsychotic dose (t = -0.439, df = 210, P = 0.521), age of illness onset (t = -1.355, df = 277, P = 0.177), positive symptoms (t = 0.249, df = 289, P = 0.803), negative symptoms (t = 0.151, df = 289, P = 0.879), or antipsychotic type (chi-square = 6.670, df = 3, P = 0.083). Subtype 1 had lower educational attainment than Subtype 2 (chi-square = 6.389, df = 2, P = 0.041). In conclusion, we discovered two distinct and highly reproducible neuroanatomical subtypes. Subtype 1 displayed widespread volume reduction correlating with illness duration, and worse premorbid functioning. Subtype 2 had normal and stable anatomy, except for larger basal ganglia and internal capsule, not explained by antipsychotic dose. These subtypes challenge the notion that brain volume loss is a general feature of schizophrenia and suggest differential aetiologies. They can facilitate strategies for clinical trial enrichment and stratification, and precision diagnostics.

Indexed as

Machine LearningAdultAtrophyBrainCase-Control StudiesEducational StatusFemaleGray MatterHumansHypertrophyMagnetic Resonance ImagingMaleNeuroimagingSchizophreniaWhite MatterYoung Adultneuroanatomical heterogeneityschizophreniasemi-supervised machine learningstructural MRIvoxel-wise analysis

Identifiers

PMID32103250
PMCPMC7089665

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.